Jacob took rods: this he did by Divine appointment, as will appear in the sequel, which is sufficient for Jacob's justification. Took rods of green popular, and of the hazel and chesnut tree; either because these trees were next at hand, or because he saw these in the Divine vision afterwards mentioned, and would exactly follow his pattern. He made the white appear, by pilling off the rind which covered it.
Related Commentaries of Genesis 30:37
Genesis 30:37
37 And Jacob took him rods of green poplar, and of the hazel and chesnut tree; and pilled white strakes in them, and made the white appear which was in the rods.